Diffusion of electrons in coherent Langmuir wave packets

A new diffusion coefficient for electrons repeatedly interacting with coherent Langmuir wave packets is proposed. The model accounts for regular islands embedded in a region of connected stochasticity, since these islands have a profound effect on the diffusion process. The diffusion coefficient has...

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Bibliographic Details
Published in:Physics letters. A 1988-01, Vol.126 (4), p.263-268
Main Authors: Rozmus, W., Samson, J.C., Offenberger, A.A.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma interactions (nonlaser)
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Summary:A new diffusion coefficient for electrons repeatedly interacting with coherent Langmuir wave packets is proposed. The model accounts for regular islands embedded in a region of connected stochasticity, since these islands have a profound effect on the diffusion process. The diffusion coefficient has a resonant form which has been explicity calculated incorporating the finite decay times of the correlation functions. Theoretical predictions compare well with numerical results derived from solutions of the equation of motion.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(88)90758-X